Ch 5 membranes BIOL 1408

Ch 5 membranes BIOL 1408

Multiple Choice

Hydrophilic means...

• water-loving

• water-fearing

• nonpolar

• lipid soluble

Multiple Choice

Hydrophobic region of the cell membrane?

• E

• B

• C

• A

Multiple Choice

What is NOT TRUE about the cell membrane

• It controls what enters and leaves the cell
• Semipermeable
• Phospholipid bilayer
• Contains digestive enzymes

Multiple Choice

What do the brown structures represent?

• Phospholipids

• Glycoproteins

• Channel Proteins

• Cyctoskeleton Filaments

Multiple Choice

Movement of molecules "up" or "against" the concentration gradient (meaning low to high) is called

• passive transport

• active transport

• diffusion

• facilitated diffusion

Multiple Choice

Which form of active transport is being shown?

• Pinocytosis
• Endocytosis
• Exocytosis
• Osmosis

Multiple Choice

Active transport moves substances against a concentration gradient

• true

• false

Multiple Choice

Movement of molecules through the cell membrane from high to low concentration

• passive transport

• active transport

Multiple Choice

What is DIFFUSION?

Multiple Choice

Passive Transport is the movement of particles across the membrane from an area of [ ___ ] to an area of [ ___ ]

• high to low

• low to high

• low to low

• high to high

Multiple Choice

Diffusion & Facilitated Diffusion are both __________ transport.

• Passive

• Active

• Easy

• Free

Multiple Choice

What type of solution is this cell in?

• Isotonic
• Hypertonic
• Hypotonic
• diffused

Multiple Choice

This egg has shrunk, what type of solution was it placed in?

• hypotonic solution

• hypertonic solution

• isotonic solution

• active transport

Multiple Choice

What type of solution allows water to enter the plant cell?

• hypotonic solution

• hypertonic solution

• isotonic solution

• active transport